Abstract: An electron emission device and a method of manufacturing the same are provided. The electron emission device includes i) a hydrophilic resin substrate and ii) carbon nano tubes that are positioned on the resin substrate. Surface roughness Ra of the resin substrate is 7.3 ?m to 9.75 ?m.

Abstract: An electron emission device and a method of manufacturing the same are provided. The electron emission device includes: i) a substrate including a metal tip; ii) carbon nano tubes that are positioned on the metal tip; and iii) a lithium layer that is positioned on the carbon nano tubes.

Abstract: The present invention is directed to a coupling apparatus for dividing a radio frequency (RE) transmitting signal and an RF receiving signal in a transceiver with a transmitting unit and a receiving unit sharing an antenna, comprising: a four-port circuit having ports 1-4; a through path formed between the port 1 and the port 2; a first signal input to the port 1 being coupled to the port 4.1; a second signal input to the port 2 being coupled to the port 3; an isolation path formed between the port 1 and the port 3 and between the port 2 and the port 4; an attenuator attenuating a signal output from the port 4; and wherein the RF transmitting signal is input to the port 1, the RF receiving signal is input to the port 2, and outputs of the port 3 are provided to the receiving unit.

Abstract: A method for sharing a secret key between a source node and a destination node includes (a) adding, at each forward intermediate node, a secret key between the forward intermediate node and a node before the forward intermediate node to the secret key sharing request message; (b) generating a shared secret key between the source node and the destination node from the secret key between the forward intermediate node and the node before the forward intermediate node added in the secret key sharing request message; (c) adding, at each backward intermediate node, a secret key between the backward intermediate node and a node before it to the secret key sharing response message; and (d) generating the shared secret key between the destination node and the source node from the secret key between the backward intermediate node and the node before it added in the secret key sharing response message.

Abstract: An apparatus and method associated with an Internet Protocol Television (IPTV) service in a mobile environment are provided. A streaming server may provide a mobile terminal with a mobile certificate and an encryption key. In response to a content request received from the mobile terminal, the streaming server may provide the mobile terminal with encrypted content and a Downloadable Conditional Access System (DCAS) code. The mobile terminal may decrypt the encrypted content using the encryption key and the DCAS code, and may play back the decrypted content.

Abstract: Provided is a method and apparatus for a smart home service to which a virtual home gateway is applied. A server may generate a virtual smart home service apparatus through a virtualization technology, and the virtual smart home service apparatus and a gateway may divide and thereby perform a function of an existing gateway. A first terminal, the server, and the gateway may be connected to each other over a first network such as the Internet, and the gateway and a second terminal may be connected to each other over a second network such as a home network. The gateway may relay transmission and reception of data between the first network and the second network.

Abstract: Methods and systems for mobile communications are provided, which provide a hands-free mobile communication when one is driving, particularly without the driver having to take out the mobile terminal and place it in the holder of a hands-free system and connect a cord. The methods and systems for mobile communications can support a plurality of users. The automobile mobile terminal is also used to perform other useful functions.

Abstract: An electronic assembly includes a first substrate and a second substrate, a hole through the first substrate, the second substrate having a trace with an indentation, an electronic device mounted over the indentation in the trace, and the first substrate is attached to the second substrate such that the electronic device is positioned within the hole through the first substrate.